JPH035883U

JPH035883U -

Info

Publication number: JPH035883U
Application number: JP6693089U
Authority: JP
Priority date: 1989-06-08
Filing date: 1989-06-08
Publication date: 1991-01-21

Description

[Brief explanation of the drawing]

第１図乃至第１０図は本考案の第１実施例を示
すもので、第１図は上下開閉式ドアの全体構成を
示す概略正面図、第２図は第１図−線矢視図
、第３図は第１図−線矢視図、第４図は第１
図−線矢視図、第５図は落下防止機構を示す
要部拡大正面図、第６図は第５図−線矢視図
、第７図は第５図−線矢視図、第８図は駆動
装置のエア給排回路を示す概略構成図、第９図は
この上下開閉式ドアに装備される安全装置を示す
概略正面図、第１０図はこの第１実施例の作用を
示す要部拡大正面図である。また、第１１図は本
考案の第２実施例を示す落下防止機構の要部拡大
正面図、第１２図はこの第２実施例の作用を示す
要部拡大正面図である。更に、第１３図は従来例
を示す要部拡大正面図である。１……上下開閉式ドア、４……扉体、４ａ……
側面、５……ガイドレール、５ａ……対向側面、
６……駆動装置（エアシリンダ）、１８，１９…
…第１の条体（第１条体）、２０……バランスウ
エイト、２１，２２……第２の条体（第２条体）
、３０……落下防止機構、３４……ローラ、３６
……アーム、３７……弾性付勢体（圧縮コイルバ
ネ）、３８……規制体、３９……くさび体、３９
ａ……傾斜面、６０……条体。 1 to 10 show a first embodiment of the present invention, in which FIG. 1 is a schematic front view showing the overall structure of a vertically opening/closable door, FIG. 2 is a view taken from FIG. Figure 3 is a view from Figure 1 - line arrows, Figure 4 is a view from Figure 1
Fig. 5 is an enlarged front view of main parts showing the fall prevention mechanism; Fig. 6 is a view from Fig. 5 - a view from the line; Fig. 7 is a view from Fig. 5 - a view from the line; Figure 9 is a schematic configuration diagram showing the air supply and exhaust circuit of the drive device, Figure 9 is a schematic front view showing the safety device installed in this vertical opening/closing door, and Figure 10 is a schematic diagram showing the operation of the first embodiment. FIG. Further, FIG. 11 is an enlarged front view of the main part of a fall prevention mechanism showing a second embodiment of the present invention, and FIG. 12 is an enlarged front view of the main part showing the operation of this second embodiment. Furthermore, FIG. 13 is an enlarged front view of main parts showing a conventional example. 1... Vertical opening/closing door, 4... Door body, 4a...
Side surface, 5... Guide rail, 5a... Opposing side surface,
6... Drive device (air cylinder), 18, 19...
...First strip body (first strip body), 20... Balance weight, 21, 22... Second strip body (second strip body)
, 30...Fall prevention mechanism, 34...Roller, 36
...Arm, 37...Elastic biasing body (compression coil spring), 38...Regulating body, 39...Wedge body, 39
a... Slanted surface, 60... Stray body.

Claims

[Scope of claim for utility model registration] (1) Guide rails placed on both left and right sides of the entrance, a door body that moves up and down guided by the guide rails, a strip that suspends this door body, and In a vertically opening/closable door comprising a drive device for driving a strip, one end is connected to the strip, a roller is disposed at the other end, and an intermediate portion is rotatably connected to the door body. an elastic biasing body that biases a connection portion between the arm and the strip body downward; and a predetermined amount of displacement that is connected to the strip body and resists the biasing force of the elastic bias body. a regulating body that receives the weight of the door body by regulating the weight of the door body; and a wedge that is fixed to a side surface of the door body and has an inclined surface whose width narrows upwardly between the opposing side surface of the guide rail. A fall prevention mechanism for a vertically opening/closing door, characterized in that the roller is interposed between the inclined surface of the wedge body and the opposing side surface of the guide rail. (2) Guide rails arranged on both the left and right sides of the entrance, a door body that moves up and down guided by the guide rails, a first strip body that suspends and supports this door body, and this first strip body. In the vertical opening/closing door, the first strip is connected to the door body, and in addition to the first strip, a predetermined upward load is applied to the door body. A second strip body is provided with a balance weight to be applied, and one end is connected to the second strip body, a roller is disposed at the other end, and the intermediate portion is rotatable to the door body. connected arms,
an elastic biasing body that biases the connecting portion between the arm and the second strip body downward; and an elastic biasing body that is connected to the second strip body and has a displacement amount that resists the biasing force of the elastic biasing body. A regulating body that receives the weight of the door body by regulating it by a predetermined amount, and an inclined surface that is fixed to a side surface of the door body and the width of the opposite side surface of the guide rail becomes narrower toward the top. A fall prevention mechanism for a vertically opening/closing door, characterized in that the roller is interposed between the inclined surface of the wedge body and the opposing side surface of the guide rail.